Getting Started with PCBA at JLCPCB

Rpschultz13 said:
Please elaborate
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Long story short, and to my limited understanding: ground that have to do with power require higher current and see more electron movement. It's not the case for most signal grounds. If your audio ground "draws" from a power ground directly and frequently, you will end up seeing ripple from the power in your audio signal.

Basically, ground plane, sure, but avoid a ground plane for power and just sticking your audio ground pads on top. Although that might apply more to high power stuff (ie tube amps or pedals with heaters) than regular 9V pedals. Fwiw I trace my PCBs with buses and generally only use pours around bridge rectifiers and filter caps.
 
Asdrael said:
Long story short, and to my limited understanding: ground that have to do with power require higher current and see more electron movement. It's not the case for most signal grounds. If your audio ground "draws" from a power ground directly and frequently, you will end up seeing ripple from the power in your audio signal.

Basically, ground plane, sure, but avoid a ground plane for power and just sticking your audio ground pads on top. Although that might apply more to high power stuff (ie tube amps or pedals with heaters) than regular 9V pedals. Fwiw I trace my PCBs with buses and generally only use pours around bridge rectifiers and filter caps.
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Hmmm. I suspect any EE will strongly disagree with this method. But I’m not knowledgeable enough to explain why. I’d suggest posing this question over on AAC.
(Then report back to us!)
 
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